Bump catalyst[cv] from 20.5 to 20.6 in /requirements

[dependabot-preview[bot]]

Bumps catalyst[cv] from 20.5 to 20.6.

Release notes

Sourced from catalyst[cv]'s releases.

Catalyst 20.06

[20.06] - 2020-06-04

Added

• Mergify (#831)
• PerplexityMetricCallback (#819)
• PeriodicLoaderRunnerCallback (#818)

Changed

• docs structure were updated during (#822)
• utils.process_components moved from utils.distributed to utils.components (#822)
• catalyst.core.state.State merged to catalyst.core.runner._Runner (#823) (backward compatibility included)
  • catalyst.core.callback.Callback now works directly with catalyst.core.runner._Runner
  • state_kwargs renamed to stage_kwargs

Removed

Fixed

• added missed dashes in docker perfixes (#828)

[20.05.1] - 2020-05-23

Added

• Circle loss implementation (#802)
• BatchBalanceSampler for metric learning and classification (#806)
• CheckpointCallback: new argument load_on_stage_start which accepts str and Dict[str, str] (#797)
• LanguageModelingDataset to catalyst[nlp] (#808)
• Extra counters for batches, loaders and epochs (#809)
• TracerCallback (#789)

Changed

• CheckpointCallback: additional logic for argument load_on_stage_end - accepts str and Dict[str, str] (#797)
• counters names for batches, loaders and epochs (#809)
• utils.trace_model: changed logic - runner argument was changed to predict_fn (#789)
• redesigned contrib.data and contrib.datasets (#820)
• catalyst.utils.meters moved to catalyst.tools (#820)
• catalyst.contrib.utils.tools.tensorboard moved to catalyst.contrib.tools (#820)

Removed

... (truncated)

Commits

• a485633 core renaming (#835)
• 0c08738 Release 20.06 (#824)
• d1d8f4d Mergify: configuration update (#831)
• 24642de feat: add mergify (#830)
• a5ccea4 fix: added missed dashes in docker perfixes #828 (#829)
• debbb71 Looking to Listen in README (#827)
• e1e354e Update README.md
• 6862fa0 texts update (#826)
• 9a73e83 Feature/periodical validation callback (#818)
• 8ced10f perplexity metric callback (#819)
• Additional commits viewable in compare view

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